In this article, I show you how to choose the best voice AI model for your Voice AI Agent with Retell AI.
When I say voice model, I am referring to this:
A voice AI agent can sound convincing in a short demo and still fail on a real call. It may forget an instruction, invent an answer, call the wrong tool or leave a caller waiting too long for a response.
That is why choosing a model requires more than listening to how the agent sounds. You need to assess how it handles the work your agent actually does.
Every voice model has the following 6 attributes that you must be aware of before you use it for your voice AI agent: